FABRICATION OF SPOT WELDING MACHINE

Resistance spot welding is an extensively used welding process for joining thin metal sheets in automobile, rail and aircraft industries. Research on resistance spot weld ability of stainless steel attracts more and more attention with the increasing usage of various types of stainless steel in industries. In this paper, a review of research works done on resistance spot welding of of stainless steel is presented. Most of the reported works on resistance spot welding of stainless steel have been on austenitic stainless steel, the most used variety of stainless steel. Though less, research works have been reported on other varieties of stainless steel also. The areas chosen for most of the works by researchers in the past have been found as process modeling and finite element analysis, dissimilar metal welding, failure mode analysis, parametric optimization and characterization of resistance spot welds. It is felt that the information presented in this report may definitely give the fresh researchers, a bird’s eye view of the research work done in the past, in this field , and is expected to provide them the right direction for the future research work, in this area. The influence of three major areas such as mechanical, electrical and thermal coupled with the ever growing demand for stainless steel as a manufacturing material provides ample scope for fresh researchers for in depth studies in this field.